21169700

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1523}}^1$

素因数の和:1676

約数の個数: 36

約数和(自身を含む): 46299120

約数和(自身を除く): 25129420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 1523, 2780, 3046, 3475, 6092, 6950, 7615, 13900, 15230, 30460, 38075, 76150, 152300, 211697, 423394, 846788, 1058485, 2116970, 4233940, 5292425, 10584850, 21169700]

約数ペア:

[(1, 21169700), (2, 10584850), (4, 5292425), (5, 4233940), (10, 2116970), (20, 1058485), (25, 846788), (50, 423394), (100, 211697), (139, 152300), (278, 76150), (556, 38075), (695, 30460), (1390, 15230), (1523, 13900), (2780, 7615), (3046, 6950), (3475, 6092)]